Answer: Plato is an author of "dialogues" (The Republic, Laws etc etc.) where the main character is Socrates. Socrates is a philosopher who uses a special kind of dialogue (so-called dialectic dialogue or dialectic method) which leads him to the truth. In other words he follows LOGOS who leads him to uncovering the Truth.
Explanation: Greek word ALETHEIA means "disclosure" and "truth" at the same time. It means that truth is always hidden. Much older Greek philosopher (pre-Socratic) Heraclitus had a dictum: "Truth likes to hide"....it seems that Socrates/Plato followed this thesis.
It is knowing as stellar evolution
1. (D) Atlantic Lowlands (Most of the Brazilians live in this part because the climate is more bearable and most of the economy of the country is based in this part)
2. (C) Semiarid (In this climate type in Brazil there's long periods of drought as well as warm winds that manage to increase the temperature more then any other part of the country)
3. (A) Sugarcane (The sugarcane is something that Brazil has in abundance, so it's no wander that it is the dominant ingredient for making ethanol)
4. (B) Emperor Pedro I (Even though Portuguese born, he is the founder of the Brazilian state and it's first leader)
